SU

Shigeru Umeno

SU Sumco: 12 patents #23 of 464Top 5%
SS Sumitomo Mitsubishi Silicon: 4 patents #10 of 146Top 7%
SI Sumitomo Metal Industries: 1 patents #630 of 1,462Top 45%
Overall (All Time): #272,986 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11121003 Method of predicting thermal donor formation behavior in silicon wafer, method of evaluating silicon wafer, and method of producing silicon wafer Kazuhisa Torigoe, Toshiaki Ono 2021-09-14
11094557 Silicon wafer Toshiaki Ono 2021-08-17
10177008 Silicon wafer and method for manufacturing the same Takashi Nakayama, Takeo Katoh, Kazumi Tanabe 2019-01-08
9412622 Epitaxial silicon wafer and method for manufacturing same Toshiaki Ono 2016-08-09
8771415 Method of manufacturing silicon single crystal, silicon single crystal ingot, and silicon wafer Keiichiro HIRAKI, Hiroaki Taguchi 2014-07-08
8617311 Silicon single crystal wafer for IGBT and method for manufacturing silicon single crystal wafer for IGBT Toshiaki Ono, Wataru Sugimura, Masataka Hourai 2013-12-31
8460463 Silicon wafer and method for producing the same Manabu Nishimoto, Masataka Hourai 2013-06-11
8231852 Silicon wafer and method for producing the same Wataru Itou, Takashi Nakayama, Hiroaki Taguchi, Yasuo Koike 2012-07-31
8105436 Single crystal silicon wafer for insulated gate bipolar transistors and process for producing the same 2012-01-31
7846252 Silicon wafer for IGBT and method for producing same Yasuhiro Oura, Koji Kato 2010-12-07
7629054 Single crystal silicon wafer for insulated gate bipolar transistors 2009-12-08
7563319 Manufacturing method of silicon wafer Masataka Hourai, Masakazu Sano, Shinichiro Miki 2009-07-21
7344689 Silicon wafer for IGBT and method for producing same Yasuhiro Oura, Koji Kato 2008-03-18
7288791 Epitaxial wafer and method for manufacturing method Satoshi Murakami, Hirotaka Fujii 2007-10-30
7014704 Method for growing silicon single crystal Toshiaki Ono, Tadami Tanaka, Eiichi Asayama, Hideshi Nishikawa 2006-03-21
6641888 Silicon single crystal, silicon wafer, and epitaxial wafer. Eiichi Asayama, Masataka Horai, Shinsuke Sadamitsu, Yasuo Koike, Kouji Sueoka +1 more 2003-11-04
6365461 Method of manufacturing epitaxial wafer Eiichi Asayama, Masataka Hourai 2002-04-02